Playing-ball.



No. 878,070. ,PATENTED-FEB". 4; 1908. 0. T. & B. P. KINGZET'T.'

PLAYING BALL.

APPLICATION FILED JAN.21.1907.

. tnined.

' UNITED STATES PATENT OFFICE.

CHARLES 'lllUZl'lAS KING/INTI, 01- Kl-LNSlXU'lON, A ND l'lltIU PAUL hlNGZETT, OF'OATERHAM,

ENGLAND.

PLAYI. *G-BALL.

Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed January 21, 1907. Serial No. 353.342.

. lacturer, residing at l Thornton street, Kensington, in the county of Middlescx, England, and l llilC pA'UL KINGZETT, chemical manui'acturer, residing at Aldercombe, Hare stone Valley, (later-ham, in the county 'of Surrey, England,- have invented new and useful lmprovements in Playing-Balls, of which the following is a speciiix'atioir.

It is a well known chemical fact that when such substances as gelatin are dissolved in water by the aid of heat to a suilicient extent, the',resulting solutions solidify upon cooling to a more or less gelatinous and e astic condition.

In common with gelatin, the following and other colloid substances behave similarly, viz-., agar agar, glue, isinglass, lrish. moss, gum tragacanth, gum arabic, albumen soap and starch.

According to this invention we employ such substances as cores or parts of cores for golf and other bulls, such cores being incased in shells of gutta percha or other suitable -material, or they may be lirst of all incased in hollow balls or envelops or l'oldings of either non-vulca-mm-d or vulcanized rub-' her or other substances and may be prepared,

with or without a central nucleus of other material. The parts thus built up are afterwards incascd with a shell ol gutta percha; baluta, or other suitable nmterinl in the manner that'is well understood in the trade. When a nucleus is employed it is dipped into a suitably prepared solution, and when the adhering part has congealed it is again dipped and cooled, repeating the operation' until the required thickness has been ob- ()r the colloid nmterialinlay be first of all prepared in thin sheet or tape form, and then be wrapped round lilo parts which are ()ores may be prepared by pouring the solution into molds ol' hall-balls (w1th or without a hollow center) and the two halt,

spheres which are obtained on congelation are placed together, preferably heating or other suitable material n'iay befilled 'with the liquid which will afterwards congeal in them.

When soap is used it is not employed-in the dry or desiccated state, but in association with water as a constituent.

We prefer substances of a gelatinous, albuminous or gummy nature, and when these are employed instead of using pure or ordinary water as a solvent or admixture, a proportion of alcohol, treacle, honey or glycerin or other liquid may be used, in addition, with the object of keeping the core in a soft or plastic or mobile condition. Again when substances of a gelatinous nature are used for making the cores they may be exposed to the vapor of formaldehyde or temporarily immersed in a solution ofthat substance, so as to prevent the cores from passing atany time into a putrefactive or decomposing state, and to render the' colloid mass insoluble in 'water. Albumen may be used in the form of coagulated blood serum or white of egg or small birds eggs may be coagulated by heat and used as cores. V

The cores may be employed of yarying size and, at any rate when the cores are made large or extremely mobile in character, it is necessary ordesirable (in the case of golf balls) to protect the cores with wra pings of rubber or other material before t e external shells are placed on the balls, 50 that 85 when the finished balls are played with, the inner cores, while susceptible of distortion by the impact of the clubs,.may resume their spherical form without fracture of the said shells.

We find that the golf balls, cores offrom ths inch to 1 inch in diameter are appropriate in size, and when. gelatin dissolved in water (with or without other added liquid) is used to form the cores, a solution of from 50% to 75% strength is a convenient one to employ. A solution of 50% strength may be usefully made bydissolving 4 ounces gelatin in 3 ounces of water'or sugar Water and 1 ounce of glycerin. A core of iths inch made of this mixture/weighs about -110 grains, but of coursewhen a stronger solution is used the core will weigh more and when a weaker solution is used the core will weigh less. Much weaker solutions may be used, such as a 3% solution of agar agar for example, if desired, but whether weaker or stronger solution or admixtures be used, if it be desired by golf ball manufacturers.

We do not claim the use of liquids as cores for golf and other balls whether such liquids be solutions of colloids or otherwise but only the use of substances existing in the colloid state.

To preserve the central cores in a mobile condition they may be coated with varnish or with pure rubber dissolved in a solvent,

or with eollodion or other equivalent material before incasing them as described. This treatment effectually prevents the loss of moisture, thus preserving the colloidal cores.

in ainobile state.

The following are examples of golf' balls made according to this invention.

Figures 1 to 6 show sections of balls made according to this invention In Fig. 1 A is a large corp of comparatively stii'l' colloidal body in( ed in external shell B of gutta percha or similar material.

In Fig. 2 A is a core of colloidal body incased in protective covering or wrapping B, of india rubber or similar material the whole being incased in an external shell 0 of gutta percha or the like.

In Fig. 3 A. is a core of colloidal body con.- tained within a spherical bag of any suitable fabric shown by the thick line B surrounded by Wrappings of vulcanized or non-vulcanized rubber or other material (1*, the whole being incased in an external shell D of gutta percha or the like.

In Fig. 4 A is a core of colloidal body having a hollow center B and surroundedby wrappings of rubber or other protective ma terial C the whole .being incased Within the external shell D of gutta percha or equivalent material.

111 Fig. 5 A is the core of colloidal body having a solid nucleus B of wood;-gutta ymrcha or of similar material contained at the center-and surrounded by wrappings or coverings of rubber or other suitable material C the whole being incased in the external ,shell D of gutta percha or other suitable material.

Fig. 6 shows a section of a ball made up of a ths inch core of colloidal gelatin A, contained within rubber windings B prepared as described in C. 'llsKingzetts specification of Patent No. 734888 and having an external shell C of gutta percha or other suitable material.

colloid body in a gelatinous eoi'idition, alayerof indiu rubber surrounding the core and a covering or shell of gutta percha surrounding the rubber. Y

I (llAllbliS THOMAS KlNlZE'lT.

ERIC PAUL lilNllZllT'lf l vitnessos:

(lnxlua ls blow-un RUSSELL. (X W. HARRIS. 

